Creating a Repeating Razor Train?

[Zaughi]

I'm trying to make a Razor Train that continues to keep coming from one side of the tunnel to the other, first seen in the coast levels of Half-Life 2. There is a tutorial on the Half-Wit 2 website, but it's down. I'm using prop_dynamics, but I'm unsure of how to make them move along a track, or even the correct entities to use to make the track. Can anyone help with this?

[Armageddon]

Do you want it to be infinite or just one train that comes and goes?

[Zaughi]

I expected that. Just one train, it appears at one end of the tunnel, goes across a track and disappears at the other end, and repeats that infinitely, not an infinitely long train. Also, I need to parent two Metropolice to it, in the middle car of the train, which is the passenger part of the train. (combine_train2b or something, it's open on both sides.)

[jangalomph]

func_tracktrain and path_tracks, and then use the teleport entity to teleport the train back over, or use a point_template to keep respawning and killing the entities.

[Armageddon]

Then you set up a path_track with a func_tracktrain and then parent the prop_dynamic train models to the func_tracktrain. Then You have a trigger_once that starts the func_tracktrain forward, at the end of the path you should have a trigger_multiple set up for models under the flags, that has the output, OnStartTouch<!activator<kill. So that the train models will be removed.

[Zaughi]

Okay, thanks much.

[LordDz]

func_tracktrain and path_tracks, and then use the teleport entity to teleport the train back over, or use a point_template to keep respawning and killing the entities.

Why? Doesn't the teleport TO flag in the path_track work? Just set the first path_track to have that flag.

[Armageddon]

Oh didn't read you wanted to do something like that. Forget the trigger_multiple that kills things when they touch it just do what Dz said.

[Zaughi]

One more thing: You can't parent NPCs, but I need three Combine Soldiers to be on the passenger platform, plus I need them to go through a tools/black brush (Disable collision somehow?). How can I do this?

[Zaughi]

Okay, just had a BIG problem. First off, the train moves sideways. Secondly, part of the train and most of the passenger car is underground. I parented both to the func_tracktrain, what did I do wrong?

[Gary]

If the soldiers don't have to do anything complex(shoot and stuff), you could just make them prop_dynamic.

[Zaughi]

Throw grenades, and shoot.

But the train moving sideways, and being underground, how do I fix that?

[LordDz]

Check the flag "Fixed Orientation" or make it face north?

And put the path_tracks slightly up in the air, the train follows them with its origin, not its wheels.

[Zaughi]

Got it, thanks.

[LordDz]

Did you manage to parent the npcs?
Because you can parent players..